/*
  Copyright (c) 2012 Open Lab
  Written by Roberto Bicchierai and Silvia Chelazzi http://roberto.open-lab.com
  Permission is hereby granted, free of charge, to any person obtaining
  a copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
  without limitation the rights to use, copy, modify, merge, publish,
  distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to
  the following conditions:

  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
function GridEditor(master) {
    this.master = master; // is the a GantEditor instance
    var gridEditor = $.JST.createFromTemplate({}, "TASKSEDITHEAD");
    gridEditor.gridify();
    this.element = gridEditor;
}


GridEditor.prototype.fillEmptyLines = function() {
    //console.debug("GridEditor.fillEmptyLines");
    var rowsToAdd = 30 - this.element.find(".taskEditRow").size();
    if (rowsToAdd > 0) {
        //fill with empty lines
        for (var i = 0; i < rowsToAdd; i++) {
            var emptyRow = $.JST.createFromTemplate({}, "TASKEMPTYROW");
            //click on empty row create a task and fill above
            var master = this.master;
            emptyRow.click(function(ev) {
                master.beginTransaction();
                var emptyRow = $(this);
                var lastTask;
                var start = new Date().getTime();
                var level = 0;
                if (master.tasks[0]) {
                    start = master.tasks[0].start;
                    level = master.tasks[0].level + 1;
                }

                //fill all empty previouses
                emptyRow.prevAll(".emptyRow").andSelf().each(function() {
                    var ch = new Task("tmp_fk" + new Date().getTime(), "", "", level, start, 1);
                    var task = master.addTask(ch);
                    lastTask = ch;
                });
                master.endTransaction();
                lastTask.rowElement.click();
                lastTask.rowElement.find("[name=name]").focus()//focus to "name" input
                    .blur(function() { //if name not inserted -> undo -> remove just added lines
                        var imp = $(this);
                        if (!imp.isValueChanged())
                            master.undo();
                    });
            });
            this.element.append(emptyRow);
        }
    }
};


GridEditor.prototype.addTask = function(task, row) {
    //console.debug("GridEditor.addTask",task,row);
    //var prof = new Profiler("editorAddTaskHtml");

    //remove extisting row
    this.element.find("[taskId=" + task.id + "]").remove();

    var taskRow = $.JST.createFromTemplate(task, "TASKROW");
    //save row element on task
    task.rowElement = taskRow;
    // 如果task.resource不存在，则说明为新创建，需加入resouce、progress，否则当保存至服务器时，从json会获取不到，报异常
    if (!task.resource) {
        task.resource = "";
        task.progress = "";
        task.resourceDesc = "";
        task.workplanRelated = "";
        task.assess = "";
        // 在设计时发现，如果直接在甘特图上输入前置任务ID，保存后，depends是保存了，但是不会显示，因此这里要判断一下，如果depends不存在，则置为空字符串
        if (!task.depends)
            task.depends = "";
        task.assessDesc = "";
        task.reportFlowType = "";
    }

    this.bindRowEvents(task, taskRow);

    if (typeof(row) != "number") {
        var emptyRow = this.element.find(".emptyRow:first"); //tries to fill an empty row
        if (emptyRow.size() > 0)
            emptyRow.replaceWith(taskRow);
        else
            this.element.append(taskRow);
    } else {
        var tr = this.element.find("tr.taskEditRow").eq(row);
        if (tr.size() > 0) {
            tr.before(taskRow);
        } else {
            this.element.append(taskRow);
        }

    }
    this.element.find(".taskRowIndex").each(function(i, el) {
        $(el).html(i + 1);
    });
    //prof.stop();

    return taskRow;
};

GridEditor.prototype.refreshTaskRow = function(task) {
    //console.debug("refreshTaskRow")
    //var profiler = new Profiler("editorRefreshTaskRow");
    var row = task.rowElement;

    row.find(".taskRowIndex").html(task.getRow() + 1);
    row.find(".indentCell").css("padding-left", task.level * 10);
    row.find("[name=name]").val(task.name);
    row.find("[name=code]").val(task.code);
    row.find("[status]").attr("status", task.status);

    row.find("[name=duration]").val(task.duration);
    row.find("[name=start]").val(new Date(task.start).format()).updateOldValue(); // called on dates only because for other field is called on focus event
    row.find("[name=end]").val(new Date(task.end).format()).updateOldValue();
    row.find("[name=depends]").val(task.depends);
    // row.find(".taskAssigs").html(task.getAssigsString());
    row.find(".taskAssigs").html(task.resourceDesc);
    if (task.workplanRelated && task.workplanRelated!="")
        row.find(".workplanRelated").html("<a href='javascript:;' onclick=\"addTab('计划', 'workplan/workplan_show.jsp?id=" + task.workplanRelated + "')\">" + task.workplanRelated + "</a>");
    else
        row.find(".workplanRelated").html("");
    if (task.assess && task.assess!="")
        row.find(".assess").html(task.assessDesc);
    else
        row.find(".assess").html("");

    row.find("[name=reportFlowType]").val(task.reportFlowType);

    //profiler.stop();
};

GridEditor.prototype.redraw = function() {
    for (var i = 0; i < this.master.tasks.length; i++) {
        this.refreshTaskRow(this.master.tasks[i]);
    }
};

GridEditor.prototype.reset = function() {
    this.element.find("[taskId]").remove();
};


GridEditor.prototype.bindRowEvents = function (task, taskRow) {
    var self = this;
    //console.debug("bindRowEvents",this,this.master,this.master.canWrite);
    if (this.master.canWrite) {
        //bind dateField on dates
        taskRow.find(".date").each(function() {
            var el = $(this);
            el.click(function() {
                var inp = $(this);
                inp.dateField({
                    inputField:el
                });
            }).blur(function(date) {
                var inp = $(this);
                if (inp.isValueChanged()) {
                    if (!Date.isValid(inp.val())) {
                        alert(GanttMaster.messages["INVALID_DATE_FORMAT"]);
                        inp.val(inp.getOldValue());

                    } else {
                        var date = Date.parseString(inp.val());
                        var row = inp.closest("tr");
                        var taskId = row.attr("taskId");
                        var task = self.master.getTask(taskId);
                        var lstart = task.start;
                        var lend = task.end;

                        if (inp.attr("name") == "start") {
                            lstart = date.getTime();
                            if (lstart >= lend)
                            //   lstart = lend - (3600000 * 24);
                                lend = lstart + (3600000 * 24) * task.duration;

                            //update task from editor
                            self.master.beginTransaction();
                            self.master.moveTask(task, lstart);
                            self.master.endTransaction();

                        } else {
                            lend = date.getTime() + (3600000 * 24);
                            if (lstart >= lend)
                            //lend = lstart + (3600000 * 24);
                                lstart = lend - (3600000 * 24) * (task.duration);

                            //update task from editor
                            self.master.beginTransaction();
                            self.master.changeTaskDates(task, lstart, lend);
                            self.master.endTransaction();
                        }


                        inp.updateOldValue(); //in order to avoid multiple call if nothing changed
                    }
                }
            });
        });


        //binding on blur for task update (date exluded as click on calendar blur and then focus, so will always return false, its called refreshing the task row)
        taskRow.find("input:not(.date)").focus(function() {
            $(this).updateOldValue();

        }).blur(function() {
            var el = $(this);
            if (el.isValueChanged()) {
                var row = el.closest("tr");
                var taskId = row.attr("taskId");

                var task = self.master.getTask(taskId);

                //update task from editor
                var field = el.attr("name");

                self.master.beginTransaction();

                if (field == "depends") {

                    var oldDeps = task.depends;
                    task.depends = el.val();
                    // update links
                    var linkOK = self.master.updateLinks(task);
                    if (linkOK) {
                        //synchronize status fro superiors states
                        var sups = task.getSuperiors();
                        for (var i = 0; i < sups.length; i++) {
                            if (!sups[i].from.synchronizeStatus())
                                break;
                        }

                        self.master.changeTaskDates(task, task.start, task.end);
                    }

                } else if (field == "duration") {
                    var dur = task.duration;
                    dur  = parseInt(el.val()) || 1;
                    el.val(dur);
                    var newEnd = computeEndByDuration(task.start, dur);
                    self.master.changeTaskDates(task, task.start, newEnd);

                } else {
                    task[field] = el.val();
                }
                self.master.endTransaction();
            }
        });


        //change status
        taskRow.find(".taskStatus").click(function() {
            var el = $(this);
            var tr = el.closest("[taskId]");
            var taskId = tr.attr("taskId");
            var task = self.master.getTask(taskId);

            var changer = $.JST.createFromTemplate({}, "CHANGE_STATUS");
            changer.css("top", tr.position().top + self.element.parent().scrollTop());
            changer.find("[status=" + task.status + "]").addClass("selected");
            changer.find(".taskStatus").click(function() {
                self.master.beginTransaction();
                task.changeStatus($(this).attr("status"));
                self.master.endTransaction();
                el.attr("status", task.status);
                changer.remove();
                el.show();

            });
            el.hide().oneTime(3000, "hideChanger", function() {
                changer.remove();
                $(this).show();
            });
            el.after(changer);
        });


        /*//expand collapse todo to be completed
         taskRow.find(".expcoll").click(function(){
         //expand?
         var el=$(this);
         var taskId=el.closest("[taskId]").attr("taskId");
         var task=self.master.getTask(taskId);
         var descs=task.getDescendant();
         if (el.is(".exp")){
         for (var i=0;i<descs.length;i++)
         descs[i].rowElement.show();
         } else {
         for (var i=0;i<descs.length;i++)
         descs[i].rowElement.hide();
         }

         });*/

        //bind row selection
        taskRow.click(function() {
            var row = $(this);
            //var isSel = row.hasClass("rowSelected");
            row.closest("table").find(".rowSelected").removeClass("rowSelected");
            row.addClass("rowSelected");

            //set current task
            self.master.currentTask = self.master.getTask(row.attr("taskId"));

            //move highlighter
            if (self.master.currentTask.ganttElement)
                self.master.gantt.highlightBar.css("top", self.master.currentTask.ganttElement.position().top);

            //if offscreen scroll to element
            var top = row.position().top;
            if (row.position().top > self.element.parent().height()) {
                self.master.gantt.element.parent().scrollTop(row.position().top - self.element.parent().height() + 100);
            }
        });

    } else { //cannot write: disable input
        taskRow.find("input").attr("readonly", true);
    }


//task editor in popup
    taskRow.find(".editTask").click(function() {
        var taskRow = $(this).closest("[taskId]");
        var taskId = taskRow.attr("taskId");
        var task = self.master.getTask(taskId);
        //console.debug(task);
        //make task editor
        var taskEditor = $.JST.createFromTemplate({}, "TASK_EDITOR");

        taskEditor.find("#name").val(task.name);
        taskEditor.find("#description").val(task.description);
        taskEditor.find("#code").val(task.code);
        taskEditor.find("#progress").val(task.progress ? parseFloat(task.progress) : 0);
        taskEditor.find("#status").attr("status", task.status);

        if (task.startIsMilestone)
            taskEditor.find("#startIsMilestone").attr("checked", true);
        if (task.endIsMilestone)
            taskEditor.find("#endIsMilestone").attr("checked", true);

        taskEditor.find("#duration").val(task.duration);
        taskEditor.find("#start").val(new Date(task.start).format());
        taskEditor.find("#end").val(new Date(task.end).format());

        taskEditor.find("#resource").val(task.resource);
        taskEditor.find("#workplanRelated").val(task.workplanRelated);
        if(task.assess=="")
            task.assess = "0";
        taskEditor.find("#assess").val(task.assess);

        if (task.reportFlowType)
            taskEditor.find("#reportFlowType").val(task.reportFlowType);

        //taskEditor.find("[name=depends]").val(task.depends);

        //make assignments table
        var assigsTable = taskEditor.find("#assigsTable");
        assigsTable.find("[assigId]").remove();
        // loop on already assigned resources
        for (var i = 0; i < task.assigs.length; i++) {
            var assig = task.assigs[i];
            var assigRow = $.JST.createFromTemplate({task:task,assig:assig}, "ASSIGNMENT_ROW");
            assigsTable.append(assigRow);
        }

        if (!self.master.canWrite) {
            taskEditor.find("input,textarea").attr("readOnly", true);
            taskEditor.find("input:checkbox,select").attr("disabled", true);
        } else {

            //bind dateField on dates
            taskEditor.find("#start").click(function() {
                $(this).dateField({
                    inputField:$(this),
                    callback: function(date) {
                        var dur = parseInt(taskEditor.find("#duration").val());
                        date.clearTime();
                        taskEditor.find("#end").val(new Date(computeEndByDuration(date.getTime(), dur)).format());
                    }
                });
            });

            //bind dateField on dates
            taskEditor.find("#end").click(function() {
                $(this).dateField({
                    inputField:$(this),
                    callback: function(end) {
                        var start = Date.parseString(taskEditor.find("#start").val());
                        end.setHours(23, 59, 59, 999);

                        if (end.getTime() < start.getTime()) {
                            var dur = parseInt(taskEditor.find("#duration").val());
                            start = incrementDateByWorkingDays(end.getTime(), -dur);
                            taskEditor.find("#start").val(new Date(computeStart(start)).format());
                        } else {
                            taskEditor.find("#duration").val(recomputeDuration(start.getTime(), end.getTime()));
                        }
                    }
                });
            });

            //bind blur on duration
            taskEditor.find("#duration").change(function() {
                var start = Date.parseString(taskEditor.find("#start").val());
                var el = $(this);
                var dur = parseInt(el.val());
                dur = dur <= 0 ? 1 : dur;
                el.val(dur);
                taskEditor.find("#end").val(new Date(computeEndByDuration(start.getTime(), dur)).format());
            });

            //bind add assignment
            taskEditor.find("#addAssig").click(function() {
                var assigsTable = taskEditor.find("#assigsTable");
                var assigRow = $.JST.createFromTemplate({task:task,assig:{id:"tmp_" + new Date().getTime()}}, "ASSIGNMENT_ROW");
                assigsTable.append(assigRow);
            });

            taskEditor.find("#status").click(function() {
                var tskStatusChooser = $(this);
                var changer = $.JST.createFromTemplate({}, "CHANGE_STATUS");
                changer.css("top", tskStatusChooser.position().top);
                changer.find("[status=" + task.status + "]").addClass("selected");
                changer.find(".taskStatus").click(function() {
                    tskStatusChooser.attr("status", $(this).attr("status"));
                    changer.remove();
                    tskStatusChooser.show();
                });
                tskStatusChooser.hide().oneTime(3000, "hideChanger", function() {
                    changer.remove();
                    $(this).show();
                });
                tskStatusChooser.after(changer);
            });

            //save task
            taskEditor.find("#saveButton").click(function() {
                var task = self.master.getTask(taskId); // get task again because in case of rollback old task is lost

                self.master.beginTransaction();
                task.name = taskEditor.find("#name").val();
                task.description = taskEditor.find("#description").val();
                task.code = taskEditor.find("#code").val();
                task.progress = parseFloat(taskEditor.find("#progress").val());
                task.duration = parseInt(taskEditor.find("#duration").val());
                task.startIsMilestone = taskEditor.find("#startIsMilestone").is(":checked");
                task.endIsMilestone = taskEditor.find("#endIsMilestone").is(":checked");
                task.resource = taskEditor.find("#resource").val();
                task.resourceDesc = taskEditor.find("#resource").find("option:selected").text();
                task.workplanRelated = taskEditor.find("#workplanRelated").val();
                task.assess = taskEditor.find("#assess").val()
                task.assessDesc = taskEditor.find("#assess").find("option:selected").text();

                task.reportFlowType = taskEditor.find("#reportFlowType").val();

                var ass = task.createAssignment("tmp_" + new Date().getTime(), task.resource, "", "");

                //set assignments
                taskEditor.find("tr[assigId]").each(function() {
                    var trAss = $(this);
                    var assId = trAss.attr("assigId");
                    var resId = trAss.find("[name=resourceId]").val();
                    var roleId = trAss.find("[name=roleId]").val();
                    var effort = millisFromString(trAss.find("[name=effort]").val());


                    //check if an existing assig has been deleted and re-created with the same values
                    var found = false;
                    for (var i = 0; i < task.assigs.length; i++) {
                        var ass = task.assigs[i];

                        if (assId == ass.id) {
                            ass.effort = effort;
                            ass.roleId == roleId;
                            ass.resourceId == resId;
                            ass.touched = true;
                            found = true;
                            break;

                        } else if (roleId == ass.roleId && resId == ass.resourceId) {
                            ass.effort = effort;
                            ass.touched = true;
                            found = true;
                            break;

                        }
                    }

                    if (!found) { //insert
                        var ass = task.createAssignment("tmp_" + new Date().getTime(), resId, roleId, effort);
                        ass.touched = true;
                    }

                });

                //remove untouched assigs
                task.assigs = task.assigs.filter(function(ass) {
                    var ret = ass.touched;
                    delete ass.touched;
                    return ret;
                });

                //change dates
                task.setPeriod(Date.parseString(taskEditor.find("#start").val()).getTime(), Date.parseString(taskEditor.find("#end").val()).getTime() + (3600000 * 24));

                //change status
                task.changeStatus(taskEditor.find("#status").attr("status"));

                if (self.master.endTransaction()) {
                    $("#__blackpopup__").trigger("close");
                }


            });
        }

        var ndo = createBlackPage(800, 330).append(taskEditor);
    });

};